Viewing archive of Friday, 14 July 2023
Solar activity report
Report of Solar-Geophysical Activity 2023 Jul 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 195 Issued at 2200Z on 14 Jul 2023IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C8 event observed at
14/1844Z from Region 3370 (S15E08). There are currently 9 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (15 Jul, 16 Jul, 17 Jul).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 444 km/s at 14/1714Z. Total IMF reached 18
nT at 14/2043Z. The maximum southward component of Bz reached -12 nT at
14/1742Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 293 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (15 Jul), quiet to
active levels on day two (16 Jul) and quiet levels on day three (17
Jul). Protons have a slight chance of crossing threshold on days one,
two, and three (15 Jul, 16 Jul, 17 Jul).
III. Event Probabilities 15 Jul to 17 Jul
| Class M | 50% | 50% | 50% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 14 Jul 181 Predicted 15 Jul-17 Jul 182/180/180 90 Day Mean 14 Jul 160
V. Geomagnetic A Indices
Observed Afr/Ap 13 Jul 009/007 Estimated Afr/Ap 14 Jul 014/019 Predicted Afr/Ap 15 Jul-17 Jul 018/022-010/012-005/005
VI. Geomagnetic Activity Probabilities 15 Jul to 17 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 35% | 15% |
| Minor storm | 25% | 15% | 01% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 20% | 15% |
| Minor storm | 25% | 25% | 15% |
| Major-severe storm | 45% | 30% | 10% |
All times in UTC
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